Or under your user profile : http://forums.digitalpoint.com/member.php?u=230194, look for 'Find all posts' in the left sidebar. - Dynashox -
You can also click on Settings in the upper right-hand corner. You should see Notifications, Settings, and Logout there. Settings will take you to your control panel where you can modify all your settings, signature, etc.
At the top right of the forum, click your username where it is displayed. Then, on the next page, look on the left column for this: Find all posts Find all started threads The same can be done from any user's profile page (click my name and then view profile)